Identification of Bioactive Compounds from Selected Plectranthus Species by Gas Chromatography-Mass Spectroscopy and Fourier Transform Infra-Red Spectroscopy

2017 ◽  
Vol 7 (6) ◽  
pp. 438-451 ◽  
Author(s):  
Selvarasuvasuki Manikandan ◽  
Ganapathy Murugan Alagu Lakshmanan ◽  
Sabeerali Ansarali
Keyword(s):  
Gas Chromatography ◽  
Fourier Transform ◽  
Bioactive Compounds ◽  
Mass Spectroscopy ◽  
Infra Red ◽  
Gas Chromatography Mass Spectroscopy

Componential Analysis of Esterified Bio-Oil Prepared from Pyrolysis of Rice Stalk

2011 ◽  
Vol 236-238 ◽  
pp. 130-133
Author(s):  
Yao Lu ◽  
Zhi Min Zong ◽  
Fang Jing Liu ◽  
Shou Ze Wang ◽  
Yu Qing ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Fourier Transform Infrared Spectroscopy ◽  
Mass Spectroscopy ◽  
Boiling Point ◽  
Abundant Species ◽  
Componential Analysis ◽  
Bio Oil ◽  
Gas Chromatography Mass Spectroscopy

Bio-oil, with high oxygen-containing character, which was prepared from flash pyrolysis of rice stalk powders, was upgraded by the method of catalytic esterification with methanol. The esterified oil was distilled stepwise from 60 °C to 105 °C, and the fractions were analyzed with Fourier transform infrared spectroscopy (FTIR) and gas chromatography/mass spectroscopy (GC/MS) for the distribution of species. It was found that 58% of the components were detected in the fraction of 60 °C-80 °C, with 1,1-dimethoxypropan-2-one was the most abundant species. The residue, in which the boiling point of species were higher than 105 °C were resolved in acetone, and also analyzed with GC/MS. The results showed that phenols are the most abundant species, and following the ketones and hydrocarbons.

SINTESIS FEROMON 3-METIL 4-OKTANOL SEBAGAI ZAT PEMBASMI HAMA KUMBANG KELAPA Rhynchoporus spp.

2011 ◽  
Vol 3 (2) ◽  
pp. 27
Author(s):  
Evy Setiawati ◽  
Khoerul Anwar
Keyword(s):  
Gas Chromatography ◽  
Mass Spectroscopy ◽  
Grignard Reagent ◽  
Magnesium Bromide ◽  
Infra Red ◽  
Gas Chromatography Mass Spectroscopy ◽  
Nh4cl Solution

The compound of 3-methyl-4-octanol had been synthesized by the formation of Grignard reagent sec-buthyl magnesium bromide. The choosing of reactant 2-bromo butane and n-pentanal were resulted from retrosynthesize analysize of 3-methyl-4octanol pheromone. The reaction of sec-buthyl magnesium bromide was done at temperature 400C for 30 minutes, while the reaction between this reagent with n-pentanal was done for two hours. The formed compound was hydrolized using saturated NH4Cl solution and then cooled. The compound was identified using Infra Red spectrophotometre (IR), Gas Chromatography (GC), and Gas Chromatography-Mass Spectroscopy (GC-MS). The yield persentage of the compound was 12,70%.Keywords: synthesis, hydrolisis, pheromone, Grignard reagent, Rhynchoporus spp

ASSESSMENT OF PHYTOCONSTITUENTS OF MEDICINAL IMPORTANCE FROM MILLETTIA PEGUENSIS ALI (SYN. MILLETTIA OVALIFOLIA KURZ)

INDIAN DRUGS ◽  
2020 ◽  
Vol 57 (05) ◽  
pp. 43-50
Author(s):  
Arshpreet Kaur ◽  
◽  
M. C. Sidhu
Keyword(s):  
Gas Chromatography ◽  
Fourier Transform ◽  
Mass Spectroscopy ◽  
Biologically Active ◽  
Leaf Extracts ◽  
Single Compound ◽  
Ft Ir ◽  
Ethanol Extracts ◽  
Gas Chromatography Mass Spectroscopy ◽  
Layer Chromatography

The present study was aimed to investigate the biologically active compounds present in the seed and leaf extracts of Millettia peguensis. Screening was done through preliminary qualitative analysis of phytochemicals and Gas Chromatography-Mass Spectroscopy (GC-MS) method. The study revealed the presence of alkaloids, carbohydrates, flavonoids, glycosides, gum and mucilage, phenolics, quinones, steroids and terpenoids in both aqueous and ethanol extracts of leaves and seeds. The GC-MS analysis of ethanol extracts of seeds and leaves have yielded 29 and 23 phytoconstituents, respectively. These observations were further validated by Fourier transform infrared spectroscopy (FT-IR) of the leaves and seeds powder. FT-IR has provided detailed information of the various functional groups associated with the compounds present in the samples. A single compound was isolated through Column Chromatography and Thin Layer Chromatography whose characterization was done through mass spectroscopy and IR spectroscopy.

scholarly journals Gasoline Production from Coconut Oil Using The Ni-MCM-41 and Co/Ni-MCM-41 Catalyst

2017 ◽  
Vol 2 (1) ◽  
pp. 22
Author(s):  
Lailatul Badriyah ◽  
Iip Izul Falah
Keyword(s):  
Gas Chromatography ◽  
Mass Spectroscopy ◽  
Fourier Transformation ◽  
Liquid Product ◽  
Coconut Oil ◽  
Infra Red ◽  
Catalyst Pellets ◽  
Gas Chromatography Mass Spectroscopy ◽  
Cracking Process ◽  
Mcm 41

<strong><em></em></strong><p>Gasoline have been produced from coconut oil using MCM-41, NiMCM-41, and Co/NiMCM-41 catalyst. The acidity of catalyst was analysed by <em>Fourier Transformation Infra-Red Spectroscopy</em> (FTIR). The yields of cracking product were analysed by <em>Gas Chromatography-Mass Spectroscopy</em> (GC-MS). The catalyst of Co/NiMCM-41 has the highest acidity than MCM-41 and NiMCM-41. It is caused by the effect of adding <em>d</em><em> </em>orbital from Co and Ni. This cracking process is <em>batch</em><em> </em>system, and the catalyst pellets were made at the temperature of 400 ºC. The highest <em>gasoline</em> product was obtained using the Co/NiMCM-41 catalyst with 89.53 % w/w yield. The major liquid product from the cracking process using MCM-41, NiMCM-41, dan Co/NiMCM-41 catalysts were estimated as 1-octena, octane, nonane; 1-octene, 1-nonene, nonane; 1-octene, octane, nonane, respectively.</p><p> </p>

Sign in / Sign up

Export Citation Format

Share Document